Which domain is NOT one of the options when defining an object detection model in AI Builder?

In the context of defining an object detection model in AI Builder, the correct answer focuses on the options typically available for this functionality. AI Builder provides several predefined domains that cater to a variety of common use cases for object detection.

Common objects cover a wide range of general items that one might encounter, making it applicable to a variety of scenarios. The option for objects on retail shelves specifically addresses the retail sector, focusing on the detection of products in a store environment. Brand logos, while more specialized, still fit within the AI Builder's capabilities to identify specific visual elements associated with brands.

The reason "specific product lines" is not one of the options is because AI Builder is designed to handle more generalized categories rather than very niche or brand-specific sets of items. Product lines can be highly variable and specific to different organizations, making them less suitable for the broad application of AI Builder's object detection models. The objective of these models is to ensure versatility and relevance across common categories rather than focusing on individual product varieties that could differ significantly from one instance to another.